WeaveCue starts from the strand lineup because outer colors usually travel farther than center colors. The planner uses the assigned slot positions to set safer thread estimates instead of giving one flat number to every strand.
In many common bracelet patterns, edge strands do more travelling. WeaveCue reflects that by adding extra multiplier room to outer slots so makers are less likely to run short late in the bracelet.
The rhythm preview is a planning aid. It shows the color cadence and balance you can expect, but it is not meant to replace a stitch-perfect knot chart for advanced patterns.
If you work with fuzzy yarn, thick cord, or unusually tight knots, cut a little longer than the default estimate. WeaveCue is designed to reduce guesswork, not to stop you from adding a personal safety margin.